green and diastereoselective synthesis of trans-3-(5-methylisoxazol-3-yl)-3,4-dihydro-2h-naphtho[2,3-e][1,3]oxazines

نویسندگان

mehdi shafiee

ahmad reza khosropour

iraj mohammadpoor-baltork

majid moghadam

shahram tangestaninejad

چکیده

reaction between aromatic aldehydes and 3–methyl-1-phenyl-2-pyrazoline-5-one catalyzed by nano-sio2/hclo4 in water under reflux provided a simple and efficient route for the synthesis of 4-((5-hydroxy-3-methyl-1-phenyl-1h-pyrazol-4-yl)(aryl)methyl)-3-methyl-1-phenyl-1h-pyrazol-5-ol derivatives in high yields.

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منابع مشابه

Green and diastereoselective synthesis of trans-3-(5-methylisoxazol-3-yl)-3,4-dihydro-2H-naphtho[2,3-e][1,3]oxazines

Reaction between aromatic aldehydes and 3–methyl-1-phenyl-2-pyrazoline-5-one catalyzed by nano-SiO2/HClO4 in water under reflux provided a simple and efficient route for the synthesis of 4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)(aryl)methyl)-3-methyl-1-phenyl-1H-pyrazol-5-ol derivatives in high yields.

متن کامل

Green and diastereoselective synthesis of trans-3-(5-methylisoxazol-3-yl)-3,4-dihydro-2H-naphtho[2,3-e][1,3]oxazines

Reaction between aromatic aldehydes and 3–methyl-1-phenyl-2-pyrazoline-5-one catalyzed by nano-SiO2/HClO4 in water under reflux provided a simple and efficient route for the synthesis of 4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)(aryl)methyl)-3-methyl-1-phenyl-1H-pyrazol-5-ol derivatives in high yields.

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SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF 3-(2’-n-BUTYLBENZOFURAN-3’-YL)-5-ARYL-4, 5-DIHYDRO-1H-PYRAZOLES.

           3-(2’-n-butylbenzofuran-3’-yl)-5-aryl-4, 5-dihydro-1H-pyrazoles (4a-4k) have been synthesized. The synthesized products have been assayed for their antimicrobial activity against Gram+ve,      Gram-ve bacteria and fungi. All the synthesized products were assigned with IR, 1HNMR, Mass Spectra, TLC, and elemental analysis. Some of the products showed moderate activi...

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SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF 3-(2’-n-BUTYLBENZOFURAN-3’-YL)-5-ARYL-4, 5-DIHYDRO-1H-PYRAZOLES.

           3-(2’-n-butylbenzofuran-3’-yl)-5-aryl-4, 5-dihydro-1H-pyrazoles (4a-4k) have been synthesized. The synthesized products have been assayed for their antimicrobial activity against Gram+ve,      Gram-ve bacteria and fungi. All the synthesized products were assigned with IR, 1HNMR, Mass Spectra, TLC, and elemental analysis. Some of the products showed moderate activi...

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3-(2H-Tetra­zol-5-yl)pyridinium trifluoro­acetate

In the cation of the title compound, C(6)H(6)N(5) (+)·CF(3)COO(-), the pyridine and tetra-zole rings are nearly coplanar, making a dihedral angle of 2.49 (19)°. In the crystal, the cations and anions are connected by inter-molecular N-H⋯O and N-H⋯(F,O) hydrogen bonds, forming centrosymmetric [2 + 2] aggregates, which stack along the a axis.

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Synthesis and in-vitro antimicrobial screening of 3-cinnamoyl coumarin and 3-[3-(1H-indol-2-yl)-3-aryl-propanoyl]-2H-chromen-2-ones

An efficient synthesis of some novel coumarin derivatives via 1, 4- Michael addition of indole to coumarin chalcones catalyzed by cellulose sulphonic acid (CSA) under solvent free conditions is described. The corresponding Michael addition products were obtained in good to excellent yield. The synthesized compounds were screened for their antibacterial activity against E. coli, S. aureus and an...

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عنوان ژورنال:
iranian journal of catalysis

ناشر: islamic azad university, shahreza branch

ISSN 2252-0236

دوره 4

شماره 3 2014

کلمات کلیدی
[ ' b e t t i b a s e ' , ' g r e e n c h e m i s t r y ' , ' a r y l a l d e h y d e s ' , ' d i h y d r o ' , ' 2 h ' , ' n a p h t h o [ 2 ' , 3 , ' e ] [ 1 ' , ' 3 ] o x a z i n e s ' , ' p ' , ' t s a ' ]

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